the only plugin that i think is immediately active on the homepage is easing slider. I am going to put in a question to the tech support there because i have that on 2 sites that have provided similar issues.

It's possible, albeit unlikely, that a firewall or proxy is in play and causing duplicate requests to be made of the WordPress site. This could result in a "headers already sent" for those users and not others. Good luck proving it, though.

Featured Post

A positive customer journey is important in attracting and retaining business. To improve this experience, you can use Google Maps APIs to increase checkout conversions, boost user engagement, and optimize order fulfillment. Learn how in this webinar presented by Dito.